Dummy load resistor is it necessary?

Thread Starter

Bien

Joined Aug 28, 2018
3
Hi everyone, I am trying to build a Lab Bench Power Supply out of old computer PSU and I am seeing that some guys are using a dummy load resistor on output so I want to know whats their use and is it necessary to use them ?

thanks,
 

thedoc8

Joined Nov 28, 2012
128
Some power supplies need one to work but most newer supplies dont. If your voltage comes up you don't need one if no voltage comes up try one.
 
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